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Journal of Analytical Chemistry

, Volume 72, Issue 7, pp 719–723 | Cite as

Stoichiographic determination of the composition and concentration of phases encapsulated in the bulk of a solid matrix phase

  • A. A. Pochtar
  • V. V. Malakhov
Articles
  • 31 Downloads

Abstract

A two-step method of stoichiographic calculations used in the determination of the formulas of phases encapsulated in the bulk of matrices of another composition is proposed. At the first stage of calculations, the stoichiometric composition of the encapsulated phase is determined and, at the second step, the concentrations of this phase and the matrix are found. The use of this method in the analysis of oxide La–Cu catalysts by the method of differential dissolution ensures the detection of the phase La1Cu1 (La2Cu2O5), incorporated within the matrix La1Cu0.5 (La2CuO4) phase.

Keywords

phase analysis stoichiography method of differential dissolution 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Boreskov Institute of Catalysis, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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